@import "https://cdn.jsdelivr.net/npm/firacode@6.2.0/distr/fira_code.css";
/* normalize.css v8.0.0 | MIT License | github.com/necolas/normalize.css */
html {
  line-height: 1.15 /* 1 */;
  -webkit-text-size-adjust: 100% /* 2 */;
}
body {
  margin: 0;
}
h1 {
  font-size: 2em;
  margin: 0.67em 0;
}
hr {
  box-sizing: content-box /* 1 */;
  height: 0 /* 1 */;
  overflow: visible /* 2 */;
}
pre {
  font-family: monospace, monospace /* 1 */;
  font-size: 1em /* 2 */;
}
a {
  background-color: transparent;
}
abbr[title] {
  border-bottom: none /* 1 */;
  text-decoration: underline /* 2 */;
  text-decoration: underline dotted /* 2 */;
}
b,
strong {
  font-weight: bolder;
}
code,
kbd,
samp {
  font-family: monospace, monospace /* 1 */;
  font-size: 1em /* 2 */;
}
small {
  font-size: 80%;
}
sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sub {
  bottom: -0.25em;
}
sup {
  top: -0.5em;
}
img {
  border-style: none;
}
button,
input,
optgroup,
select,
textarea {
  font-family: inherit /* 1 */;
  font-size: 100% /* 1 */;
  line-height: 1.15 /* 1 */;
  margin: 0 /* 2 */;
}
button,
input {
  overflow: visible;
}
button,
select {
  text-transform: none;
}
button,
[type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
}
button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {
  border-style: none;
  padding: 0;
}
button:-moz-focusring,
[type="button"]-moz-focusring,
[type="reset"]-moz-focusring,
[type="submit"]-moz-focusring {
  outline: 1px dotted ButtonText;
}
fieldset {
  padding: 0.35em 0.75em 0.625em;
}
legend {
  box-sizing: border-box /* 1 */;
  color: inherit /* 2 */;
  display: table /* 1 */;
  max-width: 100% /* 1 */;
  padding: 0 /* 3 */;
  white-space: normal /* 1 */;
}
progress {
  vertical-align: baseline;
}
textarea {
  overflow: auto;
}
[type="checkbox"],
[type="radio"] {
  box-sizing: border-box /* 1 */;
  padding: 0 /* 2 */;
}
[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}
[type="search"] {
  -webkit-appearance: textfield /* 1 */;
  outline-offset: -2px /* 2 */;
}
[type="search"]::-webkit-search-decoration {
  -webkit-appearance: none;
}
::-webkit-file-upload-button {
  -webkit-appearance: button /* 1 */;
  font: inherit /* 2 */;
}
details {
  display: block;
}
summary {
  display: list-item;
}
template {
  display: none;
}
[hidden] {
  display: none;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  text-size-adjust: 100%;
}
html {
  font-size: 62.5%;
  -ms-overflow-style: scrollbar;
  -webkit-tap-highlight-color: transparent;
}
body {
  position: relative;
  font-family: "Helvetica Neue", Helvetica, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
  font-size: 1.6rem;
  line-height: 1.5;
  background-color: #fff;
  color: #212529;
  padding: 0;
  margin: 0;
  overflow-x: hidden;
}
.feather {
  text-align: bottom;
}
.article-entry {
  line-height: 1.75;
}
.article-entry a {
  text-decoration: none;
  padding-bottom: 0.1rem;
  border-bottom: 0.2rem solid rgba(30,144,255,0.25);
  transition: all 0.3s ease-in-out 0s;
}
.article-entry a:hover {
  border-bottom-color: rgba(30,144,255,0.75);
}
.article-entry a:active {
  border-bottom-style: dashed;
}
.article-entry strong {
  font-weight: bold;
}
.article-entry em,
.article-entry cite {
  font-style: italic;
  color: #6c757d;
}
.article-entry sup,
.article-entry sub {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
.article-entry sup {
  top: -0.5rem;
}
.article-entry sub {
  bottom: -0.25rem;
}
.article-entry small {
  font-size: 85%;
}
.article-entry mark {
  background-color: rgba(255,255,0,0.25);
}
.article-entry acronym,
.article-entry abbr {
  border-bottom: 0.1rem #dee2e6 dotted;
}
.article-entry ul,
.article-entry ol,
.article-entry dl {
  margin: 1.5rem 0;
  line-height: line-height;
}
.article-entry ul,
.article-entry ol {
  padding-left: 1em;
}
.article-entry ul {
  list-style-type: circle;
}
.article-entry p,
.article-entry table,
.article-entry blockquote {
  margin: 1.5rem 0;
}
.article-entry img,
.article-entry video {
  max-width: 100%;
  height: auto;
  display: block;
  margin: auto;
}
.article-entry iframe {
  border: none;
}
.article-entry table {
  width: 100%;
  border-collapse: collapse;
  vertical-align: middle;
  empty-cells: show;
  text-align: left;
}
.article-entry table th,
.article-entry table td,
.article-entry table {
  border: 0.1rem #dee2e6 solid;
}
.article-entry table th,
.article-entry table td {
  padding: 1rem;
}
.article-entry table tbody tr:nth-child(2n) {
  background-color: #f8f9fa;
}
.article-entry hr {
  border: none;
  border-bottom: 0.1rem #dee2e6 solid;
  margin: 1rem 0;
}
.article-entry blockquote {
  position: relative;
  display: block;
  padding-left: 2rem;
  width: 100%;
  overflow: auto;
  border-left: 0.4rem #ffa502 solid;
  color: #6c757d;
}
.article-entry blockquote p {
  margin: 0;
}
.article-entry blockquote footer cite:before {
  content: "—";
  padding: 0 0.5rem;
}
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
dl {
  padding-top: 0;
  margin-top: 0;
  margin-bottom: 1rem;
}
ul {
  list-style: disc;
}
ol {
  list-style: decimal;
}
dt {
  font-weight: bold;
}
strong {
  font-weight: bold;
}
em,
cite {
  font-style: italic;
}
sup,
sub {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.2em;
}
small {
  font-size: 85%;
}
acronym,
abbr {
  border-bottom: 1px dotted;
}
a {
  color: #1e90ff;
  text-decoration: none;
}
a:hover {
  color: #359bff;
}
a:active {
  color: #0182ff;
}
a.disabled {
  color: #6c757d;
}
h1,
.h1 {
  font-size: 4rem;
}
h2,
.h2 {
  font-size: 3.2rem;
}
h3,
.h3 {
  font-size: 2.8rem;
}
h4,
.h4 {
  font-size: 2.4rem;
}
h5,
.h5 {
  font-size: 2rem;
}
h6,
.h6 {
  font-size: 1.6rem;
}
.hr {
  border: none;
  border-bottom: 0.1rem #dee2e6 solid;
  margin: 1rem 0;
}
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.text-left {
  text-align: left;
}
.font-w-normal {
  font-weight: normal;
}
.font-w-bold {
  font-weight: bold;
}
.font-w-bolder {
  font-weight: bolder;
}
.font-w-lighter {
  font-weight: lighter;
}
.text-primary {
  color: #1e90ff !important;
}
.bg-primary {
  background-color: #1e90ff !important;
}
.btn-primary {
  background-color: #1e90ff;
  border-color: #1e90ff;
}
.btn-primary:hover {
  background-color: #359bff;
}
.text-secondary {
  color: #ffa502 !important;
}
.bg-secondary {
  background-color: #ffa502 !important;
}
.btn-secondary {
  background-color: #ffa502;
  border-color: #ffa502;
}
.btn-secondary:hover {
  background-color: #ffae1b;
}
.text-success {
  color: #7bed9f !important;
}
.bg-success {
  background-color: #7bed9f !important;
}
.btn-success {
  background-color: #7bed9f;
  border-color: #7bed9f;
}
.btn-success:hover {
  background-color: #88efa9;
}
.text-danger {
  color: #ff6b81 !important;
}
.bg-danger {
  background-color: #ff6b81 !important;
}
.btn-danger {
  background-color: #ff6b81;
  border-color: #ff6b81;
}
.btn-danger:hover {
  background-color: #ff7a8e;
}
.text-warning {
  color: #eccc68 !important;
}
.bg-warning {
  background-color: #eccc68 !important;
}
.btn-warning {
  background-color: #eccc68;
  border-color: #eccc68;
}
.btn-warning:hover {
  background-color: #eed177;
}
.text-info {
  color: #70a1ff !important;
}
.bg-info {
  background-color: #70a1ff !important;
}
.btn-info {
  background-color: #70a1ff;
  border-color: #70a1ff;
}
.btn-info:hover {
  background-color: #7eaaff;
}
.text-light {
  color: #f8f9fa !important;
}
.bg-light {
  background-color: #f8f9fa !important;
}
.btn-light {
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}
.btn-light:hover {
  background-color: #f9fafa;
}
.text-gray {
  color: #6c757d !important;
}
.bg-gray {
  background-color: #6c757d !important;
}
.btn-gray {
  background-color: #6c757d;
  border-color: #6c757d;
}
.btn-gray:hover {
  background-color: #79838b;
}
.text-dark {
  color: #212529 !important;
}
.bg-dark {
  background-color: #212529 !important;
}
.btn-dark {
  background-color: #212529;
  border-color: #212529;
}
.btn-dark:hover {
  background-color: #343b41;
}
.text-white {
  color: #fff !important;
}
.bg-white {
  background-color: #fff !important;
}
.btn-white {
  background-color: #fff;
  border-color: #fff;
}
.btn-white:hover {
  background-color: #fff;
}
.line-clamp {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-1 {
  -webkit-line-clamp: 1;
}
.line-clamp-2 {
  -webkit-line-clamp: 2;
}
.line-clamp-3 {
  -webkit-line-clamp: 3;
}
.line-clamp-4 {
  -webkit-line-clamp: 4;
}
.line-clamp-5 {
  -webkit-line-clamp: 5;
}
.clearfix::before,
.clearfix::after {
  content: "";
  display: table;
  clear: both;
}
.img-fluid {
  min-width: 100%;
  max-width: 100%;
}
.feather {
  vertical-align: text-top;
}
.currency::before {
  content: attr(data-currency);
  font-size: 50%;
  font-weight: normal;
  margin-right: 0.5rem;
}
.blockquote {
  position: relative;
  margin-right: auto;
  margin-left: auto;
}
@media screen and (min-width: 768px) {
  .blockquote {
    width: 80%;
  }
}
.blockquote .blockquote-body {
  position: relative;
  padding: 1rem 5rem;
}
.blockquote .blockquote-body::before {
  position: absolute;
  top: 0;
  left: 0;
  content: url("/images/icons/quotes_before.svg");
}
.blockquote .blockquote-body::after {
  position: absolute;
  right: 0;
  bottom: 0;
  content: url("/images/icons/quotes_after.svg");
}
.blockquote .blockquote-footer {
  display: block;
  font-style: italic;
  color: #6c757d;
}
.blockquote .blockquote-footer::before {
  content: '—';
  margin-right: 1rem;
  display: inline-block;
  width: 1.6rem;
}
.article-title,
.page-type-title {
  position: relative;
  font-weight: normal;
}
.page-type-title {
  font-size: 3.2rem;
}
.btn {
  display: inline-block;
  border-width: 0.1rem;
  border-color: transparent;
  border-radius: 0.4rem;
  padding: 1rem 2rem;
  cursor: pointer;
}
.btn-sm {
  padding: 1rem;
}
.btn-lg {
  padding: 1rem 3rem;
}
.btn-block {
  display: block;
  width: 100%;
}
.container,
.container-fluid {
  position: relative;
  margin: 0 auto;
}
.container {
  max-width: 114rem;
  padding-right: 1rem;
  padding-left: 1rem;
}
@media screen and (min-width: 114rem) {
  .container {
    padding-right: 0;
    padding-left: 0;
  }
}
.container-full {
  max-width: 100%;
}
.header {
  position: relative;
  z-index: 9;
  margin-bottom: 3rem;
  box-shadow: 0 0.5rem 1rem rgba(33,37,41,0.025);
  transition: all 0.3s ease-in-out 0s;
}
.header .brand {
  position: relative;
  z-index: 9;
}
.header .brand .logo {
  height: 4rem;
}
.header.header-absolute,
.header.header-fixed {
  z-index: 9;
  left: 0;
  top: 0;
  width: 100%;
}
.header.header-absolute {
  position: absolute;
}
.header.header-absolute .main-nav .nav-item-link {
  color: #f8f9fa;
}
.header.header-fixed {
  position: fixed;
  background-color: #fff;
}
.navbar {
  position: relative;
  justify-content: center;
}
.navbar .main-nav {
  display: none;
}
.navbar .search-input {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}
@media screen and (min-width: 768px) {
  .navbar {
    justify-content: space-between;
  }
  .navbar .brand {
    margin-right: 5rem;
  }
  .navbar .main-nav {
    display: block;
  }
}
.main-nav {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
  margin-bottom: 0;
  padding: 1rem 0;
}
.main-nav .nav-item {
  display: inline-block;
  position: relative;
}
.main-nav .nav-item .nav-item-link {
  display: inline-block;
  padding: 1rem;
  color: #212529;
}
.main-nav .nav-item.active .nav-item-link {
  color: #1e90ff;
}
#mobile-nav-toggle {
  position: absolute;
  z-index: 9;
  bottom: 0;
  top: 0;
  left: 1rem;
  width: 24px;
  height: 19.200000000000003px;
  margin: auto;
  opacity: 0.5;
  cursor: pointer;
  transition: all 0.3s ease-in-out 0s;
}
#mobile-nav-toggle:active,
.mobile-nav-on #mobile-nav-toggle {
  opacity: 1;
}
@media screen and (min-width: 768px) {
  #mobile-nav-toggle {
    display: none;
  }
}
.mobile-nav-toggle-bar {
  background: #212529;
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  transition: all 0.3s ease-in-out 0s;
  transform-origin: 0;
  border-radius: 2px;
}
.mobile-nav-toggle-bar:first-child {
  top: 0;
}
.mobile-nav-on .mobile-nav-toggle-bar:first-child {
  transform: rotate(45deg);
}
.mobile-nav-toggle-bar:nth-child(2) {
  top: 8.600000000000001px;
}
.mobile-nav-on .mobile-nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.mobile-nav-toggle-bar:last-child {
  top: 17.200000000000003px;
}
.mobile-nav-on .mobile-nav-toggle-bar:last-child {
  transform: rotate(-45deg);
}
.header-absolute .mobile-nav-toggle-bar {
  background: #fff;
}
#mobile-nav-dimmer {
  position: absolute;
  top: 0;
  left: 100%;
  height: 100%;
  background: #000;
  opacity: 0;
  transition: all 0.3s ease-in-out 0s;
}
.mobile-nav-on #mobile-nav-dimmer {
  width: 100%;
  opacity: 0.7;
  transform: translateX(-100%);
}
#mobile-nav {
  position: fixed;
  top: 0;
  width: 26rem;
  left: -26rem;
  height: 100%;
  background: #212529;
  transition: all 0.3s ease-in-out 0s;
}
.mobile-nav-on #mobile-nav {
  transform: translateX(100%);
}
#mobile-nav-inner {
  overflow-y: auto;
  padding: 1rem 0;
  position: absolute;
  bottom: 0;
  right: 0;
  left: 0;
  top: 0;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
  margin-bottom: 0;
  padding: 1rem 0;
}
.mobile-nav .nav-item {
  display: block;
  position: relative;
}
.mobile-nav .nav-item .nav-item-link {
  display: block;
  padding: 1rem;
  color: #f8f9fa;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mobile-nav .nav-item.active .nav-item-link {
  color: #1e90ff;
}
.mobile-docs_menus .menu h6 {
  padding: 0 1rem;
  margin: 0;
}
.mobile-docs_menus .menu .menu-item .menu-item-link {
  display: block;
  padding: 1rem;
  color: #f8f9fa;
}
.main {
  transition: all 0.3s ease-in-out 0s;
  height: 100%;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav-on .main {
  transform: translateX(26rem);
  overflow: hidden;
  position: fixed;
  top: 0;
  bottom: 0;
}
.footer {
  position: relative;
  background-color: #212529;
  color: #6c757d;
}
.footer a {
  color: #6c757d;
}
.footer a:hover {
  color: #f8f9fa;
}
.banner {
  position: relative;
  height: 20rem;
  border-radius: 0.4rem;
  background-size: cover;
  background-position: center;
  background-image: url("/images/banner/banner.jpg");
  overflow: hidden;
}
.banner::before {
  content: '';
  position: absolute;
  z-index: 0;
  bottom: 0;
  right: 0;
  left: 0;
  top: 0;
  background-color: rgba(0,22,43,0.5);
}
.banner .banner-text {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: #f8f9fa;
}
.banner .banner-text .page-type-title {
  padding: 0;
  font-weight: normal;
  font-size: 3.2rem;
}
.carousel {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.carousel .carousel-radio[type="radio"] {
  position: absolute;
  opacity: 0;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}
.carousel .carousel-radio[type="radio"]::after {
  transition: none;
}
.carousel .carousel-radio[type="radio"] + .carousel-indicators {
  order: 2;
  display: inline-block;
  margin: 2rem 0.5rem 1rem;
  width: 1rem;
  height: 1rem;
  border-radius: 1rem;
  background-color: #dee2e6;
}
.carousel .carousel-radio[type="radio"] + .carousel-indicators + .carousel-inner {
  order: 1;
  flex-grow: 1;
  display: none;
}
.carousel .carousel-radio[type="radio"]:checked + .carousel-indicators {
  background-color: #1e90ff;
}
.carousel .carousel-radio[type="radio"]:checked + .carousel-indicators + .carousel-inner {
  display: block;
}
.section .section-heading {
  position: relative;
  padding-bottom: 1rem;
  color: #1e90ff;
}
.section .section-heading::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 5rem;
  height: 0.3rem;
  background-color: #ffa502;
  border-radius: 0.3rem;
}
.card {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease-in-out 0s;
}
.card .card-img {
  display: block;
  max-width: 100%;
  transition: all 0.3s ease-in-out 0s;
}
.card .card-body,
.card .card-header,
.card .card-footer {
  padding: 2rem;
}
.card .card-body .archive-article-title + time {
  display: inline-block;
  margin-bottom: 1rem;
}
.card .card-text,
.card .card-text > p {
  min-height: 4.800000000000001rem;
  margin-bottom: 0;
}
.card:hover .card-img {
  opacity: 0.8;
}
.instapic {
  margin: -1rem;
}
.instapic .brand-img {
  padding: 1rem;
  height: 6.4rem;
}
.archive-year-wrap {
  padding: 1rem 0;
  margin-bottom: 1rem;
  font-size: 2.4rem;
}
.archive-year-wrap .archive-year {
  color: #6c757d;
}
.article-cover {
  position: relative;
  border-radius: 0.4rem;
  overflow: hidden;
}
.article-cover .article-cover-img {
  position: relative;
  min-height: 100%;
  max-width: 100%;
}
@media screen and (max-width: 768px) {
  .article-cover {
    max-height: 20rem;
  }
}
@media screen and (min-width: 768px) {
  .article-cover {
    max-height: 50rem;
  }
}
.article-inner {
  padding: 1rem;
}
@media screen and (min-width: 768px) {
  .article-inner {
    max-width: 90rem;
    margin-right: auto;
    margin-left: auto;
  }
}
.article-header {
  margin-bottom: 1rem;
}
.article-more-link {
  margin-bottom: 0;
}
.article-tag-list {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
  position: relative;
  padding-left: 1em;
}
.article-tag-list::before {
  content: '';
  background-size: cover;
  background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='gray' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'></path><line x1='7' y1='7' x2='7.01' y2='7'></line></svg>");
  width: 1em;
  height: 1em;
  display: block;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.article-tag-list .article-tag-list-item {
  display: inline-block;
  padding: 1rem;
}
.article-nav {
  border-top: 0.1rem #dee2e6 solid;
}
.article-nav::before,
.article-nav::after {
  content: "";
  display: table;
  clear: both;
}
.article-nav .article-nav-link-wrap#article-nav-newer {
  float: left;
  text-align: left;
}
.article-nav .article-nav-link-wrap#article-nav-older {
  float: right;
  text-align: right;
}
.article-nav .article-nav-link-wrap .article-nav-caption {
  color: #212529;
}
.article-author-avatar {
  width: 2.4em;
  height: 2.4em;
  border-radius: 2.4em;
}
.album-grid {
  display: grid;
  grid-auto-flow: row dense;
  grid-gap: 1rem;
}
.album-grid .album-grid-item {
  position: relative;
  overflow: hidden;
  padding-bottom: 100%;
}
.album-grid-6 {
  grid-template-columns: repeat(2, 1fr);
}
@media screen and (min-width: 768px) {
  .album-grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media screen and (min-width: 992px) {
  .album-grid-6 {
    grid-template-columns: repeat(4, 1fr);
  }
  .album-grid-6 .album-grid-item:nth-of-type(1) {
    grid-column-start: span 2;
    padding-bottom: 50%;
  }
  .album-grid-6 .album-grid-item:nth-of-type(2) {
    grid-row-start: span 2;
  }
}
.album-grid-5 {
  grid-template-columns: repeat(2, 1fr);
}
.album-grid-5 .album-grid-item:nth-of-type(2) {
  grid-column-start: span 2;
  padding-bottom: 50%;
}
@media screen and (min-width: 768px) {
  .album-grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media screen and (min-width: 992px) {
  .album-grid-5 {
    grid-template-columns: repeat(4, 1fr);
  }
  .album-grid-5 .album-grid-item:nth-of-type(1) {
    grid-row-start: span 2;
  }
  .album-grid-5 .album-grid-item:nth-of-type(5) {
    grid-column-start: span 2;
    padding-bottom: 50%;
  }
}
.album-grid-4 {
  grid-template-columns: repeat(6, 1fr);
}
.album-grid-4 .album-grid-item:nth-of-type(1),
.album-grid-4 .album-grid-item:nth-of-type(4) {
  grid-column-start: span 4;
  padding-bottom: 50%;
}
.album-grid-4 .album-grid-item:nth-of-type(2),
.album-grid-4 .album-grid-item:nth-of-type(3) {
  grid-column-start: span 2;
  padding-bottom: 50%;
}
.album-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.album-art {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 1rem;
}
.album-art::after,
.album-art .album-art-text {
  position: absolute;
  left: 0;
}
.album-art::after {
  content: '';
  z-index: 2;
  top: 0;
  background-color: #212529;
  opacity: 0;
  width: 100%;
  height: 100%;
  transition: all 0.3s ease-in-out 0s;
}
.album-art .album-art-text {
  z-index: 3;
  bottom: 0;
  width: 100%;
  height: auto;
  padding: 1rem;
  background-color: #1e90ff;
  color: #f8f9fa;
  transform: translateY(100%);
  transition: all 0.3s ease-in-out 0s;
}
.album-art:hover::after {
  opacity: 0.75;
}
.album-art:hover .album-art-text {
  transform: translateY(0);
}
pre,
code {
  font-family: 'Fira Code', monospace;
  background: #eee;
  font-size: 0.95em;
  line-height: 20px;
}
code {
  padding: 0 5px;
}
pre {
  padding: 10px 15px;
}
pre code {
  border: none;
  display: block;
  padding: 0;
}
.highlight {
  background: #2d2d2d;
  color: #ccc;
  overflow: auto;
  margin: 0;
  font-size: 1.4rem;
}
.highlight table {
  margin: 0 !important;
  border: 0;
}
.highlight table th,
.highlight table td {
  padding: 0;
}
.highlight figcaption {
  margin: -5px 0 5px;
  font-size: 0.9em;
  color: #6c757d;
}
.highlight figcaption::before,
.highlight figcaption::after {
  content: "";
  display: table;
  clear: both;
}
.highlight figcaption a {
  float: right;
}
.highlight pre {
  padding: 0;
  border: none;
  background: none;
}
.highlight .line {
  height: 20px;
}
pre .comment,
pre .title {
  color: #999;
}
pre .variable,
pre .attribute,
pre .tag,
pre .regexp,
pre .ruby .constant,
pre .xml .tag .title,
pre .xml .pi,
pre .xml .doctype,
pre .html .doctype,
pre .css .id,
pre .css .class,
pre .css .pseudo {
  color: #f2777a;
}
pre .number,
pre .preprocessor,
pre .built_in,
pre .literal,
pre .params,
pre .constant {
  color: #f99157;
}
pre .class,
pre .ruby .class .title,
pre .css .rules .attribute {
  color: #9c9;
}
pre .string,
pre .value,
pre .inheritance,
pre .header,
pre .ruby .symbol,
pre .xml .cdata {
  color: #9c9;
}
pre .css .hexcolor {
  color: #6cc;
}
pre .function,
pre .python .decorator,
pre .python .title,
pre .ruby .function .title,
pre .ruby .title .keyword,
pre .perl .sub,
pre .javascript .title,
pre .coffeescript .title {
  color: #69c;
}
pre .keyword,
pre .javascript .function {
  color: #c9c;
}
pre .marked {
  background: #359bff;
  color: rgba(255,255,255,0.8);
}
pre .deletion {
  background: #ffeef0;
  color: #b31d28;
}
pre .addition {
  background: #f0fff4;
  color: #22863a;
}
code {
  display: inline-block;
  border-radius: 0.4rem;
}
.highlight {
  border-radius: 0.4rem;
  margin: 1rem 0;
  padding: 1rem 0;
  overflow: auto;
}
.highlight pre {
  margin: 0;
}
.highlight table {
  width: auto;
}
.highlight table,
.highlight table tr,
.highlight table th,
.highlight table td {
  border: none;
}
.highlight table .gutter,
.highlight table .code {
  padding: 0.5rem 1rem;
}
.highlight table .gutter {
  text-align: right;
  color: #6c757d !important;
  user-select: none;
}
.highlight figcaption {
  padding: 0.5rem 1rem;
  margin-bottom: 0;
  border-bottom: 0.1rem #dee2e6 solid;
}
.learn-more {
  position: absolute;
  z-index: 2;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  animation: twinkling 3s linear infinite;
}
.learn-more a {
  display: inline-block;
  color: #f8f9fa;
  transition: all 0.3s ease-in-out 0s;
}
.jumbotron {
  height: auto;
}
.video {
  position: relative;
  height: auto;
}
.video-media {
  position: relative;
  z-index: 0;
  height: 100vh;
  overflow: hidden;
}
.video-media video,
.video-media img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
}
.video-media article {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(0,22,43,0.85);
}
.video-media article .article-inset {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  color: #f8f9fa;
  text-align: center;
  font-size: large;
}
.video-frame {
  position: absolute;
  z-index: 1;
  right: 0;
  bottom: 0;
  left: 0;
  min-width: 100%;
}
.video-frame img {
  display: block;
  width: 100%;
  transform: scale(2);
  transform-origin: top center;
}
.hero {
  background-color: #fff;
}
.hero-figure {
  position: relative;
  z-index: 0;
  height: 90vh;
  margin: 0;
  padding: 0;
  overflow: hidden;
}
.hero-figure::before {
  content: '';
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(0,22,43,0.5);
}
.hero-figure figcaption {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: block;
  color: #f8f9fa;
  text-align: center;
  font-size: large;
}
.hero-figure-img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  max-height: 100%;
}
@-moz-keyframes twinkling {
  0% {
    opacity: 0.25;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.25;
  }
}
@-webkit-keyframes twinkling {
  0% {
    opacity: 0.25;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.25;
  }
}
@-o-keyframes twinkling {
  0% {
    opacity: 0.25;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.25;
  }
}
@keyframes twinkling {
  0% {
    opacity: 0.25;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0.25;
  }
}
.page-heading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
}
@media screen and (min-width: 768px) {
  .page-heading {
    flex-direction: row;
    justify-content: space-between;
  }
}
.js-toc {
  display: none;
  position: sticky;
  float: right;
  top: 0;
  width: 18rem;
  border-left: 0.1rem #dee2e6 solid;
  font-size: 1.4rem;
}
.js-toc-content {
  position: relative;
}
@media screen and (min-width: 992px) {
  .js-toc {
    display: block;
  }
  .js-toc-content {
    margin-right: 20rem;
  }
}
.toc-list {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
  margin-left: 2rem;
}
.toc-list .toc-list-item {
  position: relative;
}
.toc-list .toc-list-item .toc-link {
  display: inline-block;
  padding: 0.25rem 0;
  color: #6c757d;
}
.toc-list .toc-list-item.is-active-li > .toc-link {
  color: #1e90ff;
}
.toc-list .toc-list-item > .toc-list {
  margin-left: 1em;
}
.toc-list .toc-list-item > .toc-list .toc-list-item {
  list-style-type: '-';
  padding-left: 0.5rem;
}
.toc-list .toc-list-item > .toc-list .toc-list-item::marker {
  color: #6c757d;
}
.d-inline {
  display: inline;
}
.d-inline-block {
  display: inline-block;
}
.d-block {
  display: block;
}
.d-grid {
  display: grid;
}
.d-table {
  display: table;
}
.d-table-row {
  display: table-row;
}
.d-table-cell {
  display: table-cell;
}
.d-flex {
  display: flex;
}
.d-inline-flex {
  display: inline-flex;
}
.d-none {
  display: none;
}
.flex-row {
  flex-direction: row;
}
.flex-column {
  flex-direction: column;
}
.flex-wrap {
  flex-wrap: wrap;
}
.flex-nowrap {
  flex-wrap: nowrap;
}
.justify-content-start {
  justify-content: flex-start;
}
.justify-content-end {
  justify-content: flex-end;
}
.justify-content-center {
  justify-content: center;
}
.justify-content-between {
  justify-content: space-between;
}
.justify-content-around {
  justify-content: space-around;
}
.justify-content-evenly {
  justify-content: space-evenly;
}
.align-items-start {
  align-items: flex-start;
}
.align-items-end {
  align-items: flex-end;
}
.align-items-center {
  align-items: center;
}
.align-items-baseline {
  align-items: baseline;
}
.align-items-stretch {
  align-items: stretch;
}
.align-content-start {
  align-content: flex-start;
}
.align-content-end {
  align-content: flex-end;
}
.align-content-center {
  align-content: center;
}
.align-content-between {
  align-content: space-between;
}
.align-content-around {
  align-content: space-around;
}
.align-content-stretch {
  align-content: stretch;
}
.align-self-auto {
  align-self: auto;
}
.align-self-start {
  align-self: flex-start;
}
.align-self-end {
  align-self: flex-end;
}
.align-self-center {
  align-self: center;
}
.align-self-baseline {
  align-self: baseline;
}
.align-self-stretch {
  align-self: stretch;
}
@media screen and (min-width: 768px) {
  .item-order-1 {
    order: 1;
  }
}
@media screen and (min-width: 768px) {
  .item-order-2 {
    order: 2;
  }
}
@media screen and (min-width: 768px) {
  .item-order-3 {
    order: 3;
  }
}
@media screen and (min-width: 768px) {
  .item-order-4 {
    order: 4;
  }
}
@media screen and (min-width: 768px) {
  .item-order-5 {
    order: 5;
  }
}
@media screen and (min-width: 768px) {
  .item-order-6 {
    order: 6;
  }
}
.row,
.row-row {
  display: flex;
  margin: -1rem;
}
.row .col,
.row-row .col {
  flex: 1 1 auto;
  padding: 1rem;
}
.col-1 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-1 {
    width: 8.333333333333332%;
  }
}
.col-2 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-2 {
    width: 16.666666666666664%;
  }
}
.col-3 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-3 {
    width: 25%;
  }
}
.col-4 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-4 {
    width: 33.33333333333333%;
  }
}
.col-5 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-5 {
    width: 41.66666666666667%;
  }
}
.col-6 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-6 {
    width: 50%;
  }
}
.col-7 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-7 {
    width: 58.333333333333336%;
  }
}
.col-8 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-8 {
    width: 66.66666666666666%;
  }
}
.col-9 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-9 {
    width: 75%;
  }
}
.col-10 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-10 {
    width: 83.33333333333334%;
  }
}
.col-11 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-11 {
    width: 91.66666666666666%;
  }
}
.col-12 {
  padding: 1rem;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .col-12 {
    width: 100%;
  }
}
.row {
  flex-direction: column;
}
@media screen and (min-width: 768px) {
  .row {
    flex-direction: row;
  }
}
.row-row {
  flex-direction: row;
}
.row-row .col-1 {
  width: 8.333333333333332%;
}
.row-row .col-2 {
  width: 16.666666666666664%;
}
.row-row .col-3 {
  width: 25%;
}
.row-row .col-4 {
  width: 33.33333333333333%;
}
.row-row .col-5 {
  width: 41.66666666666667%;
}
.row-row .col-6 {
  width: 50%;
}
.row-row .col-7 {
  width: 58.333333333333336%;
}
.row-row .col-8 {
  width: 66.66666666666666%;
}
.row-row .col-9 {
  width: 75%;
}
.row-row .col-10 {
  width: 83.33333333333334%;
}
.row-row .col-11 {
  width: 91.66666666666666%;
}
.row-row .col-12 {
  width: 100%;
}
.no-gutters .col,
.no-gutters .col-1,
.no-gutters .col-2,
.no-gutters .col-3,
.no-gutters .col-4,
.no-gutters .col-5,
.no-gutters .col-6,
.no-gutters .col-7,
.no-gutters .col-8,
.no-gutters .col-9,
.no-gutters .col-10,
.no-gutters .col-11,
.no-gutters .col-12 {
  padding: 0;
}
.no-gutters {
  margin: 0;
}
.list,
.list-inline {
  list-style: none;
  padding-left: 0;
  margin-left: 0;
}
.list-inline {
  position: relative;
  margin: 0 -1rem;
}
.list-inline .list-inline-item {
  display: inline-block;
  padding-right: 1rem;
  padding-left: 1rem;
}
.w-25 {
  width: 25%;
}
.h-25 {
  height: 25%;
}
.w-50 {
  width: 50%;
}
.h-50 {
  height: 50%;
}
.w-75 {
  width: 75%;
}
.h-75 {
  height: 75%;
}
.w-100 {
  width: 100%;
}
.h-100 {
  height: 100%;
}
.w-auto {
  width: auto;
}
.h-auto {
  height: auto;
}
.m-0 {
  margin: 0 !important;
}
.m-1 {
  margin: 0.25rem !important;
}
.m-2 {
  margin: 0.5rem !important;
}
.m-3 {
  margin: 1rem !important;
}
.m-4 {
  margin: 1.5rem !important;
}
.m-5 {
  margin: 3rem !important;
}
.m-a {
  margin: auto !important;
}
.mx-0 {
  margin-right: 0 !important;
  margin-left: 0 !important;
}
.mx-1 {
  margin-right: 0.25rem !important;
  margin-left: 0.25rem !important;
}
.mx-2 {
  margin-right: 0.5rem !important;
  margin-left: 0.5rem !important;
}
.mx-3 {
  margin-right: 1rem !important;
  margin-left: 1rem !important;
}
.mx-4 {
  margin-right: 1.5rem !important;
  margin-left: 1.5rem !important;
}
.mx-5 {
  margin-right: 3rem !important;
  margin-left: 3rem !important;
}
.mx-a {
  margin-right: auto !important;
  margin-left: auto !important;
}
.my-0 {
  margin-top: 0 !important;
  margin-bottom: 0 !important;
}
.my-1 {
  margin-top: 0.25rem !important;
  margin-bottom: 0.25rem !important;
}
.my-2 {
  margin-top: 0.5rem !important;
  margin-bottom: 0.5rem !important;
}
.my-3 {
  margin-top: 1rem !important;
  margin-bottom: 1rem !important;
}
.my-4 {
  margin-top: 1.5rem !important;
  margin-bottom: 1.5rem !important;
}
.my-5 {
  margin-top: 3rem !important;
  margin-bottom: 3rem !important;
}
.my-a {
  margin-top: auto !important;
  margin-bottom: auto !important;
}
.mt-0 {
  margin-top: 0 !important;
}
.mt-1 {
  margin-top: 0.25rem !important;
}
.mt-2 {
  margin-top: 0.5rem !important;
}
.mt-3 {
  margin-top: 1rem !important;
}
.mt-4 {
  margin-top: 1.5rem !important;
}
.mt-5 {
  margin-top: 3rem !important;
}
.mt-a {
  margin-top: auto !important;
}
.mr-0 {
  margin-right: 0 !important;
}
.mr-1 {
  margin-right: 0.25rem !important;
}
.mr-2 {
  margin-right: 0.5rem !important;
}
.mr-3 {
  margin-right: 1rem !important;
}
.mr-4 {
  margin-right: 1.5rem !important;
}
.mr-5 {
  margin-right: 3rem !important;
}
.mr-a {
  margin-right: auto !important;
}
.mb-0 {
  margin-bottom: 0 !important;
}
.mb-1 {
  margin-bottom: 0.25rem !important;
}
.mb-2 {
  margin-bottom: 0.5rem !important;
}
.mb-3 {
  margin-bottom: 1rem !important;
}
.mb-4 {
  margin-bottom: 1.5rem !important;
}
.mb-5 {
  margin-bottom: 3rem !important;
}
.mb-a {
  margin-bottom: auto !important;
}
.ml-0 {
  margin-left: 0 !important;
}
.ml-1 {
  margin-left: 0.25rem !important;
}
.ml-2 {
  margin-left: 0.5rem !important;
}
.ml-3 {
  margin-left: 1rem !important;
}
.ml-4 {
  margin-left: 1.5rem !important;
}
.ml-5 {
  margin-left: 3rem !important;
}
.ml-a {
  margin-left: auto !important;
}
.p-0 {
  padding: 0 !important;
}
.p-1 {
  padding: 0.25rem !important;
}
.p-2 {
  padding: 0.5rem !important;
}
.p-3 {
  padding: 1rem !important;
}
.p-4 {
  padding: 1.5rem !important;
}
.p-5 {
  padding: 3rem !important;
}
.p-a {
  padding: auto !important;
}
.px-0 {
  padding-right: 0 !important;
  padding-left: 0 !important;
}
.px-1 {
  padding-right: 0.25rem !important;
  padding-left: 0.25rem !important;
}
.px-2 {
  padding-right: 0.5rem !important;
  padding-left: 0.5rem !important;
}
.px-3 {
  padding-right: 1rem !important;
  padding-left: 1rem !important;
}
.px-4 {
  padding-right: 1.5rem !important;
  padding-left: 1.5rem !important;
}
.px-5 {
  padding-right: 3rem !important;
  padding-left: 3rem !important;
}
.px-a {
  padding-right: auto !important;
  padding-left: auto !important;
}
.py-0 {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
}
.py-1 {
  padding-top: 0.25rem !important;
  padding-bottom: 0.25rem !important;
}
.py-2 {
  padding-top: 0.5rem !important;
  padding-bottom: 0.5rem !important;
}
.py-3 {
  padding-top: 1rem !important;
  padding-bottom: 1rem !important;
}
.py-4 {
  padding-top: 1.5rem !important;
  padding-bottom: 1.5rem !important;
}
.py-5 {
  padding-top: 3rem !important;
  padding-bottom: 3rem !important;
}
.py-a {
  padding-top: auto !important;
  padding-bottom: auto !important;
}
.pt-0 {
  padding-top: 0 !important;
}
.pt-1 {
  padding-top: 0.25rem !important;
}
.pt-2 {
  padding-top: 0.5rem !important;
}
.pt-3 {
  padding-top: 1rem !important;
}
.pt-4 {
  padding-top: 1.5rem !important;
}
.pt-5 {
  padding-top: 3rem !important;
}
.pt-a {
  padding-top: auto !important;
}
.pr-0 {
  padding-right: 0 !important;
}
.pr-1 {
  padding-right: 0.25rem !important;
}
.pr-2 {
  padding-right: 0.5rem !important;
}
.pr-3 {
  padding-right: 1rem !important;
}
.pr-4 {
  padding-right: 1.5rem !important;
}
.pr-5 {
  padding-right: 3rem !important;
}
.pr-a {
  padding-right: auto !important;
}
.pb-0 {
  padding-bottom: 0 !important;
}
.pb-1 {
  padding-bottom: 0.25rem !important;
}
.pb-2 {
  padding-bottom: 0.5rem !important;
}
.pb-3 {
  padding-bottom: 1rem !important;
}
.pb-4 {
  padding-bottom: 1.5rem !important;
}
.pb-5 {
  padding-bottom: 3rem !important;
}
.pb-a {
  padding-bottom: auto !important;
}
.pl-0 {
  padding-left: 0 !important;
}
.pl-1 {
  padding-left: 0.25rem !important;
}
.pl-2 {
  padding-left: 0.5rem !important;
}
.pl-3 {
  padding-left: 1rem !important;
}
.pl-4 {
  padding-left: 1.5rem !important;
}
.pl-5 {
  padding-left: 3rem !important;
}
.pl-a {
  padding-left: auto !important;
}
.border {
  border-style: solid;
  border-width: 0.1rem;
  border-color: #dee2e6;
}
.border-none {
  border-style: none;
}
.border-dotted {
  border-style: dotted;
}
.border-solid {
  border-style: solid;
}
.border-double {
  border-style: double;
}
.border-dashed {
  border-style: dashed;
}
.rounded-0 {
  border-radius: 0;
}
.rounded {
  border-radius: 0.4rem;
}
.rounded-spacer {
  border-radius: 1rem;
}
.rounded-circle {
  border-radius: 50%;
}
.rounded-top {
  border-top-left-radius: 0.4rem !important;
  border-top-right-radius: 0.4rem !important;
}
.rounded-bottom {
  border-bottom-left-radius: 0.4rem !important;
  border-bottom-right-radius: 0.4rem !important;
}
.shadow {
  box-shadow: 0 0.5rem 1rem rgba(33,37,41,0.125);
}
.shadow-hover {
  transition: all 0.3s ease-in-out 0s;
}
.shadow-hover:hover {
  box-shadow: 0 1rem 3rem rgba(33,37,41,0.125);
}
.filter-gray {
  -webkit-filter: grayscale(100%);
  -moz-filter: grayscale(100%);
  -o-filter: grayscale(100%);
  filter: grayscale(100%);
  filter: #808080;
}
.index-about {
  position: relative;
  z-index: 1;
  background-size: cover;
  background-position: center;
  background-image: url("/images/banner/city_scene.jpg");
}
.index-about::before {
  content: '';
  position: absolute;
  z-index: 2;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image: linear-gradient(180deg, #00b5ef, #38f);
  opacity: 0.9;
}
.index-about .container {
  z-index: 3;
}
.lazyload,
.lazyloading {
  opacity: 0;
}
.lazyloaded {
  opacity: 1;
  transition: opacity;
}
.swiper {
  position: relative;
}
.swiper .swiper-slide {
  position: relative;
  height: 100vh;
  max-height: 768px;
  overflow: hidden;
}
.swiper-slider-inset {
  position: relative;
  z-index: 1;
  height: 100%;
}
.swiper-slider-media {
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}
.safari {
  background-color: #f8f9fa;
  border-radius: 0.4rem;
}
.safari,
.safari .safari-header,
.safari .safari-body {
  position: relative;
  overflow: hidden;
}
.safari-example {
  height: 36rem;
  padding: 0;
  margin: 0;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: top left;
  background-image: url("/images/example.png");
}
@media (-webkit-min-device-pixel-ratio: 2), (min-device-pixel-ratio: 2) {
  .safari-example {
    background-image: url("/images/example@2x.png");
  }
}
.safari-btns {
  position: relative;
  background-color: #eb6b60;
}
.safari-btns,
.safari-btns:before,
.safari-btns:after {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border-radius: 1rem;
}
.safari-btns:before,
.safari-btns:after {
  content: '';
  position: absolute;
}
.safari-btns:before {
  left: 1.5rem;
  background-color: #f4be4f;
}
.safari-btns:after {
  left: 3rem;
  background-color: #66c655;
}
